package com.bdqn.mybatisplus.service;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;

import com.bdqn.mybatisplus.dao.StudentMapper;
import com.bdqn.mybatisplus.entity.Student;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

@Service
public class StudentServiceImpl extends ServiceImpl<StudentMapper, Student> implements StudentService {

    @Override
    public Page getPage(String stuName,Integer pageNum) {
        Page page=new Page(pageNum,3);
        LambdaQueryWrapper<Student> queryWrapper=new LambdaQueryWrapper();
        if (StringUtils.hasText(stuName)) {
            queryWrapper.like(Student::getStudentname,stuName);
        }
        queryWrapper.orderByAsc(Student::getId);

        return this.page(page,queryWrapper);
    }
}
